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Title: Perimeter preservers of nonnegative integer matrices (English)
Author: Song, Seok-Zun
Author: Kang, Kyung-Tae
Author: Yi, Sucheol
Language: English
Journal: Commentationes Mathematicae Universitatis Carolinae
ISSN: 0010-2628 (print)
ISSN: 1213-7243 (online)
Volume: 45
Issue: 1
Year: 2004
Pages: 9-15
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Category: math
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Summary: We investigate the perimeter of nonnegative integer matrices. We also characterize the linear operators which preserve the rank and perimeter of nonnegative integer matrices. That is, a linear operator $T$ preserves the rank and perimeter of rank-$1$ matrices if and only if it has the form $T(A)=P(A\circ B)Q$, or $T(A)=P(A^t \circ B)Q $ with appropriate permutation matrices $P$ and $Q$ and positive integer matrix $B$, where $\circ$ denotes Hadamard product. (English)
Keyword: linear operator
Keyword: rank
Keyword: perimeter
Keyword: $(P, Q, B)$-operator
MSC: 15A04
MSC: 15A30
MSC: 15A33
MSC: 15A36
MSC: 15A48
idZBL: Zbl 1099.15001
idMR: MR2076857
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Date available: 2009-05-05T16:43:01Z
Last updated: 2012-04-30
Stable URL: http://hdl.handle.net/10338.dmlcz/119434
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Reference: [1] Beasley L.B., Pullman N.J.: Boolean rank-preserving operators and Boolean rank-$1$ spaces.Linear Algebra Appl. 59 (1984), 55-77. Zbl 0536.20044, MR 0743045
Reference: [2] Beasley L.B., Gregory D.A., Pullman N.J.: Nonnegative rank-preserving operators.Linear Algebra Appl. 65 (1985), 207-223. Zbl 0561.15002, MR 0774353
Reference: [3] Beasley L.B., Pullman N.J.: Term-rank, permanent and rook-polynomial preservers.Linear Algebra Appl. 90 (1987), 33-46. Zbl 0617.15001, MR 0884107
Reference: [4] Beasley L.B., Song S.Z., Lee S.G.: Zero term rank preservers.Linear and Multilinear Algebra 48 (2001), 313-318. Zbl 0987.15002, MR 1928400
Reference: [5] Song S.Z.: Linear operators that preserve maximal column ranks of nonnegative integer matrices.Proc. Amer. Math. Soc. 126 (1998), 2205-2211. Zbl 0896.15009, MR 1443409
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